Stripper and conveyer for carrier sheets



NOV- 27, 1934- F. E. FLYNN 1,982,607

STRIPPER AND CONVEYER FOR CARRIER SHEETS Filed Dec. 27, 1932 2-SheetS-Sheet 1 y Snventor Nov. 27, 1934. F. E. FLYNN STRIPPER ANDCONVEYER FOR CARRIER SHEETS Filed Deo. 27, 1932 2 Sheets-Sheet 2Srwentor (Ittornegs Patented Nov. 27, 1934 UNITED STATES PATENT OFFICESTRIPPER AND ooN'vEYEn. Fon CARRIER smears 10 Claims.

This invention relates to apparatus for handling metal sheets.

In prior practices of handling sheet material as the same is dischargedfrom a normalizing furnace the carrier sheets as well as the primesheets disposed thereon were conveyed in stacked relation through theroller leveler. Due to the fact that the carrier sheets were not alwaysin perfect condition, presenting a surface having indentations andextraneous matter which in effect had become cemented thereon, closeassociation of these carrier sheets with the prime sheets while passingthrough the roller leveler at times caused marks in the prime stockwhich would make the same unsatisfactory for commercial use. For thisreason I have provideda stripper associated with the roller leveler sothat the carrier sheet will be separated from the prime stock and bedirected onto a. conveyer belt, which transfers the same to a suitableplace of disposal. My invention permits the prime stock alone to proceedthrough the roller leveler without interruption in its travel, therebyaccomplishing a better job of flattening and providing a sheet free fromundesirable surface defects.

The exclusion of the scaly carrier sheets from the roller levelerprevents the rolls of the leveler from becoming marked and pitted whichif not prevented would of itself preclude the leveler from turning out aperfect sheet.

The illustrated embodiment of my invention includes a run-out orconveyer disposed at the discharge end of a normalizing furnace. Thisrun-out conveys the carrier sheets along with the prime stock disposedthereon to the entrance of the lroller leveler. Suitable magnetic meanshaving a knife edge associated therewith is adapted to strip the carriersheet from the prime stock and deflect the same onto a conveyer beltbelow the leveler which in turn deposits the carrier sheet on to a truckor transfers it to a suitable place of disposal permitting the primestock to pass between the rolls of the roller leveler from which it isdischarged onto a second run-out or conveyer table.

Various advantageous features of my invention will become more apparentas this description continues considered in conjunction with theaccompanying drawings wherein similar characters or reference designatecorresponding parts and wherein:

Figure 1 is a side elevation partly broken away f of a run-out androller leveler associated with the discharge end of a heating furnaceand embodying my invention;

Figure 2 is an enlarged view partly in section of the roller leveler andassociated equipment embodying my invention;

Figure 3 is a side elevation view of the runout and roller levelerhaving associated therewith a modified form of my invention;

Figure 4 is an elevational-view taken on the line 4-4 of Figure 3.

Referring now to Figure 1 of the drawings there isdiagramnaticallyillustrated the discharge end of a normalizing furnace 1, havingassociated therewith a run-out or conveyer table 2, a roller leveler 3,and a second run-out 4, all disposed in tandem and adapted to receivesheet material as the same is discharged from the furnace. The run-out 2is of the usual construction and comprises a pair of spaced horizontalbeams 5 which are supported from a suitable .foundation or base by legmembers 6. Carried by the horizontal beams 5 are a plurality of spacedbearing blocks I in which are journalled the opposite ends of the shafts'la upon which are mounted the conveyerrolls 8. These rolls arerotatably driven by any suitable means or through sprocket wheels 8a asshown in Figure 4. The roll 9 of this run-out, which is most remote fromthe discharge end of the normalizing furnace, is preferably of smallerdiameter than the remaining rolls of the run-out and is of the magnetictype. This magnetic roll is independently driven and its purpose andfunctions will become more apparent as this description progresses.

The roller leveler 3 is ofthe usual conventional type including ahousing 9a which supports a plurality of opposed straightening rolls 10which engage opposite faces of the sheet material as the same passestherebetween. Secured to the housing 9a adjacent the entrance to theroll pass is a pair of adjustable bracket members 12, secured to theinner side of the housing on opposite sides of the entrance to theleveler. The brackets 12 support a knife edge 13 in such position as toassist in separating the prime sheets A from the carrier sheets B theformer being introduced between the rolls 10 of the roller leveler,while the latter is discharged on to the conveyer 15 and carried to a.suitable place of storage. Directly below the knife edge 13 andsupported by the housing of the leveler is a guide plate 14. This plate14 receives the carrier sheets as they are deflected thereon by themagnetic roller 9 and directs the same on to the conveyer 15. Iheconveyer belt 15`is disposed below the roller leveler 3 and eirtendsAthroughout the extent thereof as well as the run-out 4. This conveyerbelt is supported and driven through sprocket wheels 16 and 17. Thesprocket wheel 16 is carried on a driven shaft 16d journalled y inbearings 21 mounted on vsuitable bracket secured to the endmost legmember`6 of the run-out 2'. The sprocket 17 is supported in a likemanner from the end leg member 22 of the run-out 4. The run-out 4 whichreceives the prime sheets as they are discharged from the leveler issimilar in construction to the run-out 2 and comprises a pair of spacedhorizontal beams 23 supported on a plurality of leg members 22. Thebeams 23 carry a plurality of spaced bearing blocks 25 in which theopposing ends of the shafts 26 are journalled. 'I'he conventionalconveyer rolls 27 are mounted on the shafts 26. At the end of theconveyer 4 is provided a tilting table 29 which facilitates the removalof the sheet material from the conveyer 4.

Conveyer belt 15 transports the carrier sheets B to a gravity table 3lwhich directs the sheets on to a buggy or to a suitable place of storageremote from the run-out where they are stacked and permitted to cooluntil such time as they are again used to convey the prime sheetsthrough the normalizing furnace.

In operation, the carrier sheets B with the prime sheets A disposedthereon are conveyed through the furnace 1 and discharged therefrom onto the run-out or conveyer table 2. The sheets travel along this tableuntil the carrier sheet comes into contact with the magnetic roll 9which travels at a greaterperipheral speed than the remaining rolls ofthe run-out 2. The speed of the magnetic roll 9 in addition to themagnetic attraction of the roll for the carrier sheet is effective indirecting the forward end of the carrier sheet downwardly. 'Ihe magneticattraction of this roll on the conveyer sheet B is suflicient only todirect the same below the knife edge 13 and has substantially noeffective attraction for the prime sheet A which continues in itshorizontal travel passing over the face of the knife edge 13 and betweenthe rolls 10 of the leveler. From the roller leveler 3 the prime sheetsare discharged on to the run-out table 4. The conveyer sheet B after ithas been stripped from the prime sheet A through the medium of the knifeedge 13 and magnetic roller 9 is directed downwardly on to the conveyer15 by the guide 14. The conveyer 15 is adapted to transport the carriersheet B to any suitable place of disposal or storage.

With reference to Figures 3 and 4 I have shown a modified form of myinvention wherein in place of the magnetic roller 9 illustrated inFigures 1 and 2 I have provided a plurality of solenoids 40 having cores41. The cores 41 extend upwardly from the solenoid and are spaced inclose proximity to the carrier sheet as the same passes along theconveyer table 2. The solenoids are energized from any suitable sourceof current (not shown) The magnetic attraction of the solenoid for thecarrier sheets B as in the case of the roller 9 is sufficient to deflectthe sheet below the knife edge 13. In the apparatus shown in Figure 3 asthe carrier sheet is deflected below the rolls of the roller leveler theconveyer 45 upon which it is directed is substantially of less extentthan the conveyer shown in Figure 1. This construction allows thepositioning of the buggy below the conveyer table or run-out 4 for thereception of the carrier sheets.

While I have described the illustrated embodiment of my invention insome particularity, obviously many modifications and variations willreadily occur to those skilled in the art and I do not, therefore, limitmyself to the precise details shown and described, but claim as myinvention all the embodiments thereof coming within the scope of theappended claims.

I claim:

1. In an apparatus of the class described, a run-out adapted to convey acarrier sheet having a.l prime sheet disposed thereon, a conveyer beltdisposed below the plane of said run-out, and magnetic means associatedwith said run-out and positioned in `such a manner as to act upon thecarrier sheet for separating said sheets and denecting the carrier sheetinto a plane below said run-out onto said conveyer.

2. The combination with a conveyer adapted to convey flat prime sheetsfrom a furnace to a. roller leveler, said conveyer including a carriersheet on which the prime sheet may be supported to prevent marring, ofmagnetic means adapted to separate the carrier sheet from the primesheet and deflectV the same below the plane of the conveyer to asuitable place of storage.

3. The combination with a conveyer adapted to convey rflat prime sheetsfrom a furnace to a roller leveler, said conveyer including a carriersheet on which the prime sheet may be supported to prevent marring, of aconveyer belt adjacent the discharge end of said conveyer for receivingthe carrier sheet, and magnetic means adapted to separate the carriersheet from the prime sheet and deflect the same from the course oftravel of the prima sheet on to said conveyer belt.

4. The combination with a conveyer adapted to convey flat prime sheetsfrom a furnace to a roller leveler, said conveyer including a carriersheet on which the prime sheet may be supported to prevent marring, of aconveyer belt disposed in a plane below and adjacent the discharge endof said conveyer for receiving the carrier sheet, and magnetic meanspositioned in such a manner as to act upon the carrier sheet andseparate same from said prime sheet, and means for directing the primesheet into the roller leveler and for deecting the carrier sheet fromthe course of the prime sheet and on to said conveyer belt.

5. The combination with a conveyer adapted to convey flat prime sheetsfrom a furnace to a roller leveler, said conveyer including a carriersheet on which the prime sheet may be supported to prevent marring, ofmagnetic means adapted to separate the carrier sheet from the primesheet and deflect the same below the plane of the conveyer to a suitableplace of storage, and means for directing the prime sheet into theroller leveler.

6. Apparatus for conveying prime sheets and ycarrier sheets disposed instacked relation from a furnace to a roller leveler comprising aconveyer and magnetic means associated with the conveyer positioned insuch a manner as to act upon the carrier sheet and deflect the samebelow the plane of travel of the prime sheet.

7. Apparatus for conveying prime sheets and carrier sheets disposed instacked relation from a furnace to a roller leveler comprising aconveyer for receiving the sheets as they are discharged from thefurnace, a second conveyer disposed in a plane below the plane of thefirst conveyer and magnetic means positioned in such a manner as to actupon the carrier sheets for deecting the same from the first conveyerand onto the second conveyer.

means disposed in position to attract magnetically the carrier sheet anddeflect it out of the plane of travel of the prime sheet.

10. Apparatus for separating a carrier sheet of magnetic material fromthe prime sheet disposed thereon comprising a conveyer and a magneticroller associated with the conveyer and disposed to contact the carriersheet and deect the same out of the plane of travel of the prime sheet.

FRANK E. FLYNN.

